Some foods are noted to be “great for vision” – for example, carrots, mangos, etc.
What does “great for vision” even mean? I wear glasses and am under the assumption that my poor eyesight isn’t going to magically slightly improve by downing foods rich in certain vitamins and minerals.
In: Biology
We have found that a lack of vitamin A can cause your eyesight to get worse. The yellow/orange color of carrots and mango is caused by vitamin A or its precursors. Although a lot of different food contain enough vitamin A to prevent vitamin A deficiency. So carrots do not improve vision.
The myth were created intentionally by the British air forces at the start of WWII. They had developed radar which allowed their fighters to be deployed directly to intercept incoming German bombers. In an effort to hide this new technology from the Germans they claimed that British pilots had much superior vision to the Germans and could spot the enemy airplanes at a much further distance. This is why the Germans always saw the British airplanes coming directly at them rather then in the process of turning in towards them. The British claimed the good eye sight were from eating carrots. They were serving carrots in the canteen whenever they had visitors and launched a campaign to encourage kids to eat carrots. All in an effort to fool the Germans.
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